Finding the Fourth Proportional to 838,279.34, 1,257,419.44 and 277,313.84
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Solution
The fourth proportional to 838,279.34, 1,257,419.44 and 277,313.84 is: 415,970.90
Step by Step Solution
- Step 1: Write the proportion equation
838,279.34 : 1,257,419.44 = 277,313.84 : x - Step 2: Convert to fraction form
838,279.34/1,257,419.44 = 277,313.84/x - Step 3: Cross multiply
838,279.34x = 1,257,419.44 × 277,313.84 - Step 4: Simplify right side
838,279.34x = 348,699,813,397.05 - Step 5: Solve for x
x = 348,699,813,397.05/838,279.34 - Step 6: Final answer
x = 415,970.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.